Bully beatdown

I don't know the situation, but I'd say it's kinda likely the bigger bullies used the little one for humiliation factor.

1. There were bigger kids around
2. They were recording it

Makes me think that they purposely told the smaller one of the group to make a fool out of the dude. Not that the smaller kid really has an excuse, but maybe it was peer pressure of his fellow bullies combined with a false sense of security that they have his back in the event of things escalating.

Could be so, one can only guess the story behind it.
and in this day and age, phones/ipods/whatever are capable of recording video. most fights i have seen are always recorded by atleast 3 people so they can look back to it or show their friends who werent there to see it in person, its not always recorded for the sole purpose of posting it on the net.